from collections import OrderedDict
from django.conf import settings
from django.template import loader
import os
import time
from goods.models import GoodsCategory,GoodsChannel
from contents.models import ContentCategory,Content

def generate_static_index_html():
    categories = OrderedDict()
    channels = GoodsChannel.objects.order_by(
        'group_id',
        'sequence'
    )
    for channel in channels:
        group_id = channel.group_id
        if group_id not in categories:
            categories[group_id] = {
                'channels':[],
                'sub_cats':[]
            }
        cat1 = channel.category
        categories[group_id]['channels'].append({
            'id':cat1.id,
            'name':cat1.name,
            'url':channel.url
        })
        cat2s = GoodsCategory.objects.filter(parent=cat1)
        for cat2 in cat2s:
            cat2.sub_cats = []
            cat3s = GoodsCategory.objects.filter(parent=cat2)
            for cat3 in cat3s:
                cat2.sub_cats.append(cat3)
            categories[group_id]['sub_cats'].append(cat2)
        contents = {}
        content_categories = ContentCategory.objects.all()
        for cat in content_categories:
            contents[cat.key] = Content.objects.filter(
                category=cat,
                status=True
            ).order_by('sequence')

        context = {
            'categories':categories,
            'contents':contents
        }
        template = loader.get_template('index.html')
        html_text = template.render(context)
        file_path = os.path.join(settings.GENERATED_STATIC_HTML_FILES_DIR,'index.html')
        with open(file_path,'w',encoding='utf-8') as f:
            f.write(html_text)